The short version
Most termite treatments for a home in Gresham cost about $1,200–$3,500. In Gresham, bait systems cost about the same to install, plus a yearly monitoring fee. An inspection usually runs $75–$250.
- Most treatments in Gresham cost about $1,200–$3,500.
- Bait systems add a yearly monitoring fee.
- Inspections usually cost $75–$250.
- Compare what each quote covers, not just the total.
- Insurance usually doesn’t cover termite damage.
Homeowners, landlords and anyone buying or selling a house in Gresham, whether you've spotted something or just want to know what to watch for.
What to look for
Spongy floors or bubbling paint usually mean long-running damage. So it's worth an inspection, even for one or two signs. Termites work quietly. A colony can feed inside a wall for years. Average winter lows near 36°F slow termites near the surface around Gresham, but they move deeper and keep feeding under heated homes.
- 1Sagging or spongy floors near exterior walls.
- 2Live pale insects inside a broken mud tube.
- 3Piles of identical shed wings on windowsills.
- 4Wood that sounds hollow when tapped.
- 5Winged swarmers indoors, especially in spring.
- 6Mud tubes running up foundation walls or piers.
Why it’s worth acting soon
- Colonies grow and spread every year they go untreated.
- Damage hides behind drywall, flooring and trim.
- Homeowners insurance usually doesn’t cover termite damage.
- An active infestation can complicate a home sale.
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Estimate termite treatment cost in Gresham
Adjust for your situation to see a ballpark range.
Estimated range
A rough guide only. Your quote depends on your house and what the inspection finds.
Treatment options and typical costs
Termite Inspection and WDI Report
$75–$250
The inspector checks the foundation, garage, attic and damp spots. Bring up anything you’ve noticed.
- Time
- 60–120 minutes
- Best for
- Every job, real estate closings, and yearly peace of mind
Localized Wood, Foam, and Borate Treatment
$250–$1,500
Borate is brushed or sprayed onto bare wood in crawl spaces. Termites that eat treated wood around a Gresham home die, and the protection lasts as long as the wood stays dry.
- Time
- 1–3 hours
- Best for
- Small drywood spots, wall voids, and exposed framing
Liquid Soil Termiticide Barrier
$1,200–$3,500 (often $3–$16 per linear foot)
The label on the termiticide is federal law, so a licensed Gresham applicator follows it exactly. Ask which active ingredient is used and how long it lasts.
- Time
- Half a day to a full day
- Best for
- Active subterranean termites; fast knockdown around the foundation
Fumigation for Drywood Termites
$1,200–$4,000 (often $1–$4 per square foot)
Tenting is mainly for drywood termites. Most homes here never need it.
- Time
- 2–3 days including tenting and aeration
- Best for
- Widespread drywood termites throughout a structure
Prices are typical published ranges. Ask what’s included before you compare quotes.
Cardboard boxes stacked on a garage slab are termite food sitting right on their doorstep. Keep storage on shelves.What termite work costs in Gresham.
- Termite Inspection and WDI Report: $75–$250 - Localized Wood, Foam, and Borate Treatment: $250–$1,500 - Liquid Soil Termiticide Barrier: $1,200–$3,500 (often $3–$16 per linear foot) - Fumigation for Drywood Termites: $1,200–$4,000 (often $1–$4 per square foot) - A typical home in Gresham is worth around $445k, so a $1,200–$3,500 treatment is a small share of what's at stake. With the crawl spaces common around Gresham, the soil is easier to reach. Tight or wet crawl spaces take longer, though.
Local termites conditions in Gresham.
Knowing Gresham's seasonal timing lets you schedule treatment before the busy stretch rather than after it, which usually means faster service and a more accurate quote. A provider who works Gresham and Oregon every day can point out the specific conditions that matter most here, and getting the scope, price, and follow-up terms in writing makes it easier to compare options. Gresham sits in a mediterranean climate, and that sets the pace for termite activity here: spring swarm season (March-May), warmer earlier in the south. In Gresham, the area is mostly suburban, so termites pressure can differ from one block to the next depending on how tight the entry points are and how much food, water, or shelter is close by. An inspection in Gresham usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first.
Subterranean termites don't stop in winter; they just go deeper. A quiet season is a good time for a non-urgent inspection.Which termites live around Gresham.
It nests in soil and builds mud tubes to reach wood. It needs steady moisture. The termite you're most likely to meet in Gresham is the western subterranean termite.
When termites swarm here.
A swarm inside usually means it's in the house. Save a few in a bag, or snap a clear photo. Swarm season is when termites show themselves. In Gresham, western subterranean termites usually swarm in spring, and again in fall after the first good rain. A swarm outside means a colony is nearby.
Where to look around your house.
Standing water or a musty smell needs fixing either way. The same advice applies across the area, from Gresham out to Oregon City and Portland. A lot of houses around Gresham are built over crawl spaces, and that's usually where termites start. Take a flashlight underneath. Check the piers, the sill plate and the floor joists.
A year of termites in Gresham.
- Summer: with highs around 80°F in Gresham, termites follow moisture, so watch AC drain lines, sprinkler zones and hose bibs. - Fall: with about 44 inches of rain a year in Gresham, make sure gutters and downspouts carry water well away from the foundation. - Winter: a good time to book an inspection in Gresham, before swarm season starts. - Spring and fall: swarm seasons. In Gresham, swarms often follow the first warm days and the first fall rain.
Ways to keep the cost down.
- Ask about both bait and liquid options for your house. - If you already have a warranty, keep the renewal current. - Book before swarm season, when schedules fill up. - Get two or three quotes, and compare what each one covers. - Fix leaks and drainage first. Moisture brings termites back.
What happens at an inspection.
They'll also go into the crawl space. A moisture meter and a probe help them find hidden activity. Afterward, ask them to show you what they found. Photos help. Most inspections take an hour or two. The inspector walks the outside of the house first. They check the foundation, the soil line and nearby wood. Inside, they check the garage, baseboards, plumbing gaps and the attic.
Termites or ants?
- Antennae: termite antennae are straight. Ant antennae bend like an elbow. - Debris: termites leave mud. Carpenter ants leave sawdust. - Tunnels: termite galleries are packed with mud. Ant tunnels are clean and smooth. - Wings: termite wings are all the same length. Ant wings aren’t. - Waist: termites are thick through the middle. Ants are pinched.
Getting ready for treatment day.
Clear a path along the outside walls. Move stored boxes away from garage walls. Mark sprinkler heads and any buried lines. Keep pets and kids inside while the crew works outside. Ask how long to stay off treated soil. Any drill holes in a slab or patio get patched. Soil treatments and bait stations need little prep.
Mulch and termites.
Wood chips right against siding hold moisture termites like. Keep mulch thin and pull it back from the foundation. A dry strip along the house lets you spot mud tubes.
Questions to ask before you sign.
- Is the whole foundation treated, or just one spot? - What does the warranty cover, and for how long? - What does the yearly renewal cost? - What do I need to do before and after treatment? - Which termites did you find, and where? - What product or system will you use?
What affects the price
- Time of year and how booked up local companies are.
- Warranty type: retreatment only or damage repair.
- Cubic footage under the tent for fumigation.
- Species: subterranean, drywood, or Formosan.
- Liquid barrier versus bait station system.
- Linear feet of foundation to be treated.
- Whole-house fumigation versus spot treatment.
- Wells, drains, or water features limiting chemical use.
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What's your biggest concern about termite control costs?
When to call for help
Call if you see mud tubes, pellets or an indoor swarm. Hollow-sounding wood is another clue. Buying or selling? Get a wood-destroying insect (WDI) report either way. Lenders often ask for one. It's also the cheapest termite service. Carpenter ants leave clean tunnels and sawdust. Termites leave mud.
What you can do yourself
Some of the work is yours. Pull mulch back from the foundation. Fix leaks and clear gutters. Keep firewood away from the house. Treating an active colony is harder. The product has to reach the whole colony. It also needs even coverage around the entire foundation. Store-bought sprays usually kill only the termites you see.
Termites in Gresham
Not every house gets them, but plenty do. With summer highs around 80°F, Gresham's mediterranean climate decides when local termites are busiest. A typical home in Gresham is worth around $445k, which puts a few hundred dollars for an inspection and prevention in perspective. About 44 inches of rain a year in Gresham is plenty for subterranean termites, especially on any side of the house kept damp by gutters or sprinklers. Termites are a steady, moderate risk in Oregon.
Local research
Termites in Gresham, OR: what the public record shows
Before you compare quotes, it helps to know which termites actually live in Oregon, when they are busiest around Gresham, and what the state figures look like. Everything below links to the agency or university page it came from.
Termite species recorded in Oregon
- Western subterranean termite (Reticulitermes hesperus) — Oregon State: causes damage to structures in the Pacific Northwest and 'may swarm any time of year'. Utah State describes swarmers 3/8 inch long and workers 1/4–3/8 inch, pale c…
- Pacific dampwood termite (Zootermopsis angusticollis) — Oregon State: 'consumes and nests inside moist, water-damaged wood'; swarms 'during late summer or fall'. A moisture problem, not a soil problem, is the usual root cause.
When termites are busiest around Gresham
Pacific dampwood swarms late summer or fall; western subterranean may swarm any time of year (Oregon State).
Oregon State: both species 'cause damage to structures in the Pacific Northwest'; control 'is best left to professional pest controllers'.
Sources: University of Georgia Extension; University of Missouri Extension; Termites | Solve Pest Problems. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep termites away
- Caulk gaps around plumbing and utility penetrations.
- Store firewood well away from the house, off the ground.
- Use borate-treated or pressure-treated lumber for repairs.
- Keep six inches between soil and siding or wood.
- Inspect used furniture for drywood pellets before bringing indoors.
In an apartment building, termites travel through shared walls and slab joints, so one unit's problem is the whole building's problem.Did you know?
In Gresham, some tropical termites grow fungus gardens inside the nest and eat the harvest.
In Gresham, termites have been chewing wood for well over 100 million years, since the age of the dinosaurs.
Questions people ask
Is a bait system cheaper than a liquid treatment?
A liquid barrier has no monthly checks. Ask for both prices. Not usually upfront. In Gresham, bait costs about the same to install, plus a yearly monitoring fee.
How much does annual termite renewal cost?
It keeps the warranty active and includes a yearly check. Letting it lapse usually ends the warranty. Usually $150–$400 a year.
How much does a termite inspection cost?
Some companies credit it toward treatment if you go ahead. It's worth asking. Usually $75–$250.
How much does termite treatment cost?
In Gresham, bait systems cost about the same to install, plus $300–$500 a year. The size of the house matters most. Most liquid treatments run about $1,200–$3,500.
What is the difference between subterranean and drywood termites?
Drywood termites live inside the wood and leave tiny pellets. Around Gresham, the subterranean kind causes most problems. Subterranean termites live in soil and build mud tubes.
Are mud tubes always a sign of active termites?
Break off a piece and check back in a week. If it's rebuilt, they're active. Not always. Old tubes can stay on a wall for years.
Does fumigation kill subterranean termites too?
Tenting clears termites inside the house. It doesn't reach a colony living in the soil. Not reliably.
Do most homeowners know termites can damage their house?
In Gresham, termites are best caught early through inspection, because the damage is hidden inside wood until it is far along. In Gresham, a professional inspection looks for mud tubes, damaged wood, and swarming activity, and treatment targets the soil and the colony rather than just the visible wood.
Are termites common in Oregon?
Around Gresham, the usual culprit is the western subterranean termite.
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Sources (11)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Termite Exterminator · Updated September 11, 2026 · How we write these guides